came to a tragic end, a deadly hit-and-run crash killing carlos thomason and critically injuring oscar rodriguez. carlos was trying to help out his buddy who had run out of gas along the palmetto expressway near southwest 8th street when left for dead. tonight investigators tells they have a person of interest. they have also seized the car used in the the hit-and-run. >> would you say an arrest is imminent? >> i can't say that because the problem we have is that we have to have enough evidence to be able to put that person behind the wheel. >> michael: without an eyewitness or video evidence, it's nearly impossible to make an arrest, but this is just one of thousands of hit-and-run crashes in south florida. in fact, the statistics are staggering. last year in miami-dade county more than 18,000 hit-and-run crashes, 39 reported deaths, an increase from 2014. and it's a growing problem in broward county where troopers investigated nearly 11,000 crashes with 15 fatalities. the amount of crashes increased in just one year. >> if i didn't have insurance -- >> i think a lot of times people weren't are